Caterpillar 303.5 Mini Hydraulic Excavator Factory Service & Shop Manual
Catalog:
Model:
Caterpillar 303.5 Mini Hydraulic Excavator service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.
RENR3538 - Disassembly and Assembly (303.5 Mini Hydraulic Excavator Machine Systems)
RENR3536 - Testing and Adjusting (303.5 Mini Hydraulic Excavator)
RENR3535 - Systems Operation (303.5 Mini Hydraulic Excavator)
RENR3534 - Specifications (303.5 Mini Hydraulic Excavator)
RENR3539 - Schematic (303.5 and 304.5 Mini Hydraulic Excavator Electrical System)
RENR3533 - Disassembly and Assembly (303.5 Mini Hydraulic Excavator)
...
RENR3537 - Schematic (303.5 Mini Hydraulic Excavator Hydraulic System)...2
RENR3533 - Disassembly and Assembly (303.5 Mini Hydraulic Excavator)...4
Alternator - Remove and Install...7
Bearing Clearance - Check...9
Camshaft - Install...12
Camshaft - Remove...15
Connecting Rod Bearings - Install...18
Connecting Rod Bearings - Remove...20
Coolant Temperature Switch - Remove and Install...22
Crankshaft - Install...25
Crankshaft - Remove...27
Crankshaft Front Seal - Install...29
Crankshaft Front Seal - Remove...31
Crankshaft Main Bearings - Install...34
Crankshaft Main Bearings - Remove...36
Crankshaft Pulley - Remove and Install...38
Crankshaft Rear Seal - Install...41
Crankshaft Rear Seal - Remove...43
Cylinder Head - Install...45
Cylinder Head - Remove...49
Electric Starting Motor - Remove and Install...54
Engine Oil Pan - Remove and Install...56
Engine Oil Pressure Switch - Remove and Install...59
Engine Oil Pump - Install...62
Engine Oil Pump - Remove...67
Engine Oil Relief Valve - Remove and Install...71
Exhaust Manifold - Remove and Install...74
Fan - Remove and Install...77
Flywheel - Install...80
Flywheel - Remove...84
Flywheel Housing - Remove and Install...88
Fuel Filter Base - Assemble...95
Fuel Filter Base - Disassemble...98
Fuel Filter Base - Install...101
Fuel Filter Base - Remove...103
Fuel Injection Lines - Remove and Install...106
Fuel Injection Nozzles - Install - 3013, 3014 and 3024 Engines...109
Fuel Injection Nozzles - Remove - 3013, 3014 and 3024 Engines...111
Fuel Injection Pump - Install...113
Fuel Injection Pump - Remove...116
Fuel Shutoff Solenoid - Remove and Install...119
Fuel Transfer Pump - Install...122
Fuel Transfer Pump - Remove...124
Glow Plugs - Remove and Install...126
Housing (Front) - Install...129
Housing (Front) - Remove...131
Inlet Manifold - Install - 3013, 3014, and 3024 Engines...133
Inlet Manifold - Remove - 3013, 3014, and 3024 Engines...135
Inlet and Exhaust Valve Springs - Remove and Install...138
Inlet and Exhaust Valves - Remove and Install...142
Lifter Group - Remove and Install...147
Pistons and Connecting Rods - Assemble...150
Pistons and Connecting Rods - Disassemble...156
Pistons and Connecting Rods - Install...160
Pistons and Connecting Rods - Remove...164
Rocker Shaft - Assemble - 3013, 3014, and 3024 Engines...166
Rocker Shaft - Disassemble - 3013, 3014 and 3024 Engines...169
Rocker Shaft and Pushrod - Install - 3013, 3014 and 3024 Engines...171
Rocker Shaft and Pushrod - Remove - 3013, 3014 and 3024 Engines...173
V-Belts - Remove and Install...175
Valve Mechanism Cover - Remove and Install...178
Water Pump - Install - 3013, 3014, and 3024 Engines...183
Water Pump - Remove - 3013, 3014, and 3024 Engines...185
Water Temperature Regulator - Remove and Install...187
Water Temperature Regulator Housing - Remove and Install...190
RENR3534 - Specifications (303.5 Mini Hydraulic Excavator)...193
Bank Valve and Mounting...194
Blade Cylinder...197
Boom Cylinder...199
Boom Swing Cylinder...201
Bucket Cylinder...203
Gerotor Motor (Swing)...205
Hydraulic Tank...206
Load Control Valve (Boom)...208
Pilot Valve (Joystick)...209
Pilot and Travel Speed Manifold...211
Piston Motor (Travel)...213
Piston and Gear Pump...215
Recoil Spring...217
Solenoid Valve (Work Tool Lowering)...218
Speed and Direction Control...219
Sprocket...220
Stick Cylinder...221
Swing Gear and Bearing...223
Track Roller...225
Track...226
RENR3535 - Systems Operation (303.5 Mini Hydraulic Excavator)...227
Bank Valve...228
Boom Hydraulic System...259
Bucket Hydraulic System...261
Combined Function Hydraulic Operation...263
General Information...265
Gerotor Motor (Swing)...270
Pilot Hydraulic System...273
Pilot Valve (Joystick)...278
Pilot and Travel Speed Manifold...282
Piston Motor (Travel)...284
Piston and Gear Pump...287
Return Hydraulic System...293
Solenoid Valve (Work Tool Lowering)...295
Stick Hydraulic System...297
Swing System...299
Swivel...301
Travel System...303
RENR3536 - Testing and Adjusting (303.5 Mini Hydraulic Excavator)...305
Accumulator (Pilot) - Test and Charge...306
Gerotor Motor (Swing) - Test...312
Hydraulic Oil Contamination - Test...324
Hydraulic System Pressure - Release...326
Hydraulic System Troubleshooting...328
Load Control Valve (Boom) - Test and Adjust...334
Machine Preparation...338
Operational Checks...340
Pilot System Pressure - Test...350
Piston and Gear Pump - Test and Adjust...353
Relief Valve (Line) - Test and Adjust...356
Relief Valve (Main) - Test and Adjust...373
Visual Inspection...383
Worksheets - Troubleshoot...385
RENR3538 - Disassembly and Assembly (303.5 Mini Hydraulic Excavator Machine Systems)...391
Accumulator (Hydraulic Pilot) - Remove and Install...394
Bank Valve - Assemble...396
Bank Valve - Disassemble...410
Bank Valve - Install...423
Bank Valve - Remove...434
Blade - Remove and Install...444
Blade Cylinder - Remove and Install...448
Boom - Remove and Install...453
Boom Cylinder - Remove and Install...461
Boom Lowering Control Valve - Remove and Install...468
Boom Swing Cylinder - Remove and Install...475
Bucket - Remove and Install...481
Bucket Cylinder - Remove and Install...486
Bucket Linkage - Remove and Install...490
Cab - Remove and Install...494
Cab Heater - Remove and Install...500
Counterweight - Remove and Install...503
Duo-Cone Conventional Seals - Install...512
Final Drive Sprocket - Remove and Install...519
Front Idler - Assemble...522
Front Idler - Disassemble...524
Front Idler and Track Adjuster - Install...526
Front Idler and Track Adjuster - Remove...528
Fuel Tank - Install...530
Fuel Tank - Remove...534
Gear Pump - Install...539
Gear Pump - Remove...543
Gerotor Motor (Swing) - Assemble...547
Gerotor Motor (Swing) - Disassemble...564
Gerotor Motor (Swing) - Install...579
Gerotor Motor (Swing) - Remove...583
Hydraulic System Pressure - Release...588
Hydraulic Tank - Remove and Install...589
Pilot Valve (Joystick) - Assemble...599
Pilot Valve (Joystick) - Disassemble...601
Pilot Valve (Joystick) - Install...603
Pilot Valve (Joystick) - Remove...612
Pilot and Travel Speed Manifold - Remove and Install...621
Piston Motor (Travel) - Assemble...629
Piston Motor (Travel) - Install...649
Piston Motor (Travel) - Remove...652
Piston Pump - Assemble...676
Piston Pump - Disassemble...687
Piston Pump - Install...695
Piston Pump - Remove...700
Piston and Gear Pump - Install...705
Piston and Gear Pump - Remove...710
Recoil Spring - Assemble...715
Recoil Spring - Disassemble...718
Recoil Spring - Install...720
Recoil Spring - Remove...722
Seat - Remove and Install...724
Stick - Remove and Install...727
Stick Cylinder - Remove and Install...734
Swing Gear and Bearing - Remove and Install...740
Swivel - Assemble...744
Swivel - Disassemble...748
Swivel - Install...752
Swivel - Remove...757
Track - Remove and Install...762
Track Adjuster - Assemble...767
Track Adjuster - Disassemble...769
Track Carrier Roller - Remove and Install...771
Track Roller - Remove and Install...776
Undercarriage Frame - Remove and Install...781
RENR3539 - Schematic (303.5 and 304.5 Mini Hydraulic Excavator Electrical System)...794
Collage...795
Main...810
KENR6786 - Disassembly and Assembly (S3Q2 and S3Q2-T Egnines)...812
Air Inlet and Exhaust System - Inspect...814
Air Inlet and Exhaust System - Install...815
Air Inlet and Exhaust System - Remove...817
Cooling System - Disassemble_Inspect_Assemble...819
Cooling System - Install...823
Cooling System - Remove...825
Cylinder Head and Valve Mechanism - Assemble...827
Cylinder Head and Valve Mechanism - Disassemble and Inspect...834
Cylinder Head and Valve Mechanism - Inspect and Repair...840
Electrical System - Disassemble_Inspect_Assemble...854
Electrical System - Install...881
Electrical System - Remove...883
Flywheel - Assemble...889
Flywheel - Disassemble and Inspect...892
Flywheel - Inspect and Repair...896
Fuel System - Disassemble_Inspect_Assemble...898
Fuel System - Install...904
Fuel System - Remove...906
General Information...909
General Tools...911
Lubrication System - Disassemble_Inspect_Assemble...913
Lubrication System - Install...919
Lubrication System - Remove...922
Piston, Connecting Rod, Crankshaft, and Cylinder Block - Assemble...927
Piston, Connecting Rod, Crankshaft, and Cylinder Block - Disassemble and Inspect...940
Piston, Connecting Rod, Crankshaft, and Cylinder Block - Inspect and Repair...951
Special Tools...973
Timing Gear, Camshaft, and Oil Pan - Assemble...975
Timing Gear, Camshaft, and Oil Pan - Disassemble and Inspect...984
Timing Gear, Camshaft, and Oil Pan - Inspect and Repair...993
KENR6786 - Specifications (S3Q2 and S3Q2-T Egnines)...1002
Engine Design...1003
Engine Specifications...1009
General Torque Information...1013
Inspection Information...1020
KENR6786 - Systems Operation (S3Q2 and S3Q2-T Egnines)...1037
Engine Information...1038
Governor Control - Automatic Engine Speed Control...1045
KENR6786 - Testing and Adusting (S3Q2 and S3Q2-T Egnines)...1047
Compression - Test...1048
Engine Inspection Record Sheet...1050
Engine Valve Lash - Inspect_Adjust...1065
Fuel System - Prime...1070
Governor - Adjust...1071
High Idle RPM - Adjust...1072
Initial Startup Procedure...1073
Low Idle RPM - Adjust...1075
Operational Checks...1078
Overhaul Considerations...1080
Rack (Maximum Output) - Adjust...1081
Safety Messages and Their Care...1082
Speed Variation - Measure...1084
Speed Variation Rate - Adjust...1086
Troubleshooting - Automatic Engine Speed Control...1088
V-Belt - Test...1091
EXCERPT:
1. Move the machine to a smooth horizontal location. Move the machine away from other machines and personnel. Lower the blade to the ground. Lower the boom, the stick and the bucket to the ground. Stop the engine.
2. Put chocks in front of the tracks and behind the tracks.
3. Raise the blade for tests and adjustments. Properly support the blade.
Note: Unless a system test requires the front of the machine off the ground, do not stop the engine with the front of the machine off the ground. Lower the machine to the ground and stop the engine.
...